Using d3.geoMercator, i got NaN

[chemistwang]

Here is my function: const projectionFn = d3.geoMercator().center(pjCenter).scale(pjScale).translate([0, 0]);. But i got NaN, i was wondering the reason why.

[Fil]

what are the values of pjCenter and pjScale?

[chemistwang]

pjCenter is [117.226808, 31.849411], pjScale is 600

[Fil]

This works for me; please share most context as to how you “got NaN”.

[chemistwang]

I rechecked it again and i found this is my fault. The projectionFn parameter requires a one-dimensional array, but I used a single number. Thank you!